static void r300EmitElts(GLcontext * ctx, void *elts, unsigned long n_elts,
int elt_size)
{
r300ContextPtr rmesa = R300_CONTEXT(ctx);
struct r300_dma_region *rvb = &rmesa->state.elt_dma;
void *out;
assert(elt_size == 2 || elt_size == 4);
if (r300IsGartMemory(rmesa, elts, n_elts * elt_size)) {
rvb->address = rmesa->radeon.radeonScreen->gartTextures.map;
rvb->start = ((char *)elts) - rvb->address;
rvb->aos_offset =
rmesa->radeon.radeonScreen->gart_texture_offset +
rvb->start;
return;
} else if (r300IsGartMemory(rmesa, elts, 1)) {
WARN_ONCE("Pointer not within GART memory!\n");
_mesa_exit(-1);
}
r300AllocDmaRegion(rmesa, rvb, n_elts * elt_size, elt_size);
rvb->aos_offset = GET_START(rvb);
out = rvb->address + rvb->start;
memcpy(out, elts, n_elts * elt_size);
}
static GLboolean
r300ValidateClientStorage(GLcontext * ctx, GLenum target,
GLint internalFormat,
GLint srcWidth, GLint srcHeight,
GLenum format, GLenum type, const void *pixels,
const struct gl_pixelstore_attrib *packing,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
r300ContextPtr rmesa = R300_CONTEXT(ctx);
if (0)
fprintf(stderr, "intformat %s format %s type %s\n",
_mesa_lookup_enum_by_nr(internalFormat),
_mesa_lookup_enum_by_nr(format),
_mesa_lookup_enum_by_nr(type));
if (!ctx->Unpack.ClientStorage)
return 0;
if (ctx->_ImageTransferState ||
texImage->IsCompressed || texObj->GenerateMipmap)
return 0;
/* This list is incomplete, may be different on ppc???
*/
switch (internalFormat) {
case GL_RGBA:
if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8_REV) {
texImage->TexFormat = _dri_texformat_argb8888;
} else
return 0;
break;
case GL_RGB:
if (format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5) {
texImage->TexFormat = _dri_texformat_rgb565;
} else
return 0;
break;
case GL_YCBCR_MESA:
if (format == GL_YCBCR_MESA &&
type == GL_UNSIGNED_SHORT_8_8_REV_APPLE) {
texImage->TexFormat = &_mesa_texformat_ycbcr_rev;
} else if (format == GL_YCBCR_MESA &&
(type == GL_UNSIGNED_SHORT_8_8_APPLE ||
type == GL_UNSIGNED_BYTE)) {
texImage->TexFormat = &_mesa_texformat_ycbcr;
} else
return 0;
break;
default:
return 0;
}
/* Could deal with these packing issues, but currently don't:
*/
if (packing->SkipPixels ||
packing->SkipRows || packing->SwapBytes || packing->LsbFirst) {
return 0;
}
{
GLint srcRowStride = _mesa_image_row_stride(packing, srcWidth,
format, type);
if (0)
fprintf(stderr, "%s: srcRowStride %d/%x\n",
__FUNCTION__, srcRowStride, srcRowStride);
/* Could check this later in upload, pitch restrictions could be
* relaxed, but would need to store the image pitch somewhere,
* as packing details might change before image is uploaded:
*/
if (!r300IsGartMemory(rmesa, pixels, srcHeight * srcRowStride)
|| (srcRowStride & 63))
return 0;
/* Have validated that _mesa_transfer_teximage would be a straight
* memcpy at this point. NOTE: future calls to TexSubImage will
* overwrite the client data. This is explicitly mentioned in the
* extension spec.
*/
texImage->Data = (void *)pixels;
texImage->IsClientData = GL_TRUE;
texImage->RowStride =
srcRowStride / texImage->TexFormat->TexelBytes;
return 1;
}
}